system/scrypt: Added (scrypt encryption utility)
Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>
This commit is contained in:
LEVAI Daniel
Willy Sudiarto Raharjo
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006efbbaf9
commit
f0afabad7f
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The scrypt key derivation function was originally developed for use in the
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Tarsnap online backup system and is designed to be far more secure against
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hardware brute-force attacks than alternative functions such as PBKDF2 or
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bcrypt.
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This simple password-based encryption utility is available as a demonstration
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of the scrypt key derivation function. On modern hardware and with default
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parameters, the cost of cracking the password on a file encrypted by scrypt
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enc is approximately 100 billion times more than the cost of cracking the same
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password on a file encrypted by openssl enc; this means that a five-character
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password using scrypt is stronger than a ten-character password using openssl.
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#!/bin/sh
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# Copyright (c) 2011-2013 LEVAI Daniel
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# All rights reserved.
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#
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# * Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# * Redistributions of source code must retain the above copyright notice
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# this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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# AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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PRGNAM=scrypt
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VERSION=${VERSION:-1.1.6}
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BUILD=${BUILD:-1}
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TAG=${TAG:-_SBo}
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if [ -z "$ARCH" ]; then
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case "$( uname -m )" in
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i?86) ARCH=i486 ;;
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arm*) ARCH=arm ;;
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*) ARCH=$( uname -m ) ;;
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esac
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fi
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CWD=$(pwd)
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TMP=${TMP:-/tmp/SBo}
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PKG=$TMP/package-$PRGNAM
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OUTPUT=${OUTPUT:-/tmp}
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if [ "$ARCH" = "i486" ];then
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SLKCFLAGS="-O2 -march=i486 -mtune=i686"
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LIBDIRSUFFIX=""
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elif [ "$ARCH" = "i686" ]; then
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SLKCFLAGS="-O2 -march=i686 -mtune=i686"
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LIBDIRSUFFIX=""
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elif [ "$ARCH" = "x86_64" ]; then
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SLKCFLAGS="-O2 -fPIC"
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LIBDIRSUFFIX="64"
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else
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SLKCFLAGS="-O2"
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LIBDIRSUFFIX=""
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fi
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set -e
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rm -rf $PKG
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mkdir -p $TMP $PKG $OUTPUT
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cd $TMP
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rm -rf $PRGNAM-$VERSION
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tar xvf $CWD/$PRGNAM-$VERSION.tgz
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cd $PRGNAM-$VERSION
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chown -R root:root .
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find -L . \
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\( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
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-o -perm 511 \) -exec chmod 755 {} \; -o \
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\( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
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-o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
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./configure \
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--prefix=/usr \
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--mandir=/usr/man \
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--docdir=/usr/doc \
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--build=$ARCH-slackware-linux
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make
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make install DESTDIR=$PKG
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find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
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| cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
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find $PKG/usr/man -type f -exec gzip -9 {} \;
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for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
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mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
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cp -a $CWD/README FORMAT $PKG/usr/doc/$PRGNAM-$VERSION/
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cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
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mkdir -p $PKG/install
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cat $CWD/slack-desc > $PKG/install/slack-desc
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cd $PKG
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/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
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PRGNAM="scrypt"
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VERSION="1.1.6"
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HOMEPAGE="http://www.tarsnap.com/scrypt.html"
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DOWNLOAD="http://www.tarsnap.com/scrypt/scrypt-1.1.6.tgz"
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MD5SUM="a35523cd497f7283635ce881db39c2e2"
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DOWNLOAD_x86_64=""
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MD5SUM_x86_64=""
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REQUIRES=""
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MAINTAINER="LEVAI Daniel"
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EMAIL="leva@ecentrum.hu"
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@ -0,0 +1,19 @@
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# HOW TO EDIT THIS FILE:
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# The "handy ruler" below makes it easier to edit a package description.
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# Line up the first '|' above the ':' following the base package name, and
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# the '|' on the right side marks the last column you can put a character in.
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# You must make exactly 11 lines for the formatting to be correct. It's also
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# customary to leave one space after the ':' except on otherwise blank lines.
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|-----handy-ruler------------------------------------------------------|
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scrypt: scrypt (scrypt encryption utility)
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scrypt:
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scrypt: A simple password-based encryption utility that is a demonstration of
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scrypt: the scrypt key derivation function.
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scrypt:
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scrypt:
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scrypt: Homepage: http://www.tarsnap.com/scrypt.html
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scrypt:
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scrypt:
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scrypt:
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scrypt:
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